I am able to reproduce this consistently on maverick. xorg virtual memory increases by 8MB every time I change the desktop background. xrestop is stable.
Running the intel driver, compiz, nautilus.
Linux mimiv 2.6.35-23-generic #41-Ubuntu SMP Wed Nov 24 10:18:49 UTC 2010 i686 GNU/Linux
ii xserver-xorg-video-intel 2:2.12.0-1ubuntu5.1
ii xorg 1:7.5+6ubuntu3 X.Org X Window System
ii xserver-xorg 1:7.5+6ubuntu3 the X.Org X server
ii xserver-xorg-core 2:1.9.0-0ubuntu7 Xorg X server - core server
I am able to reproduce this consistently on maverick. xorg virtual memory increases by 8MB every time I change the desktop background. xrestop is stable.
Running the intel driver, compiz, nautilus.
Linux mimiv 2.6.35-23-generic #41-Ubuntu SMP Wed Nov 24 10:18:49 UTC 2010 i686 GNU/Linux
ii xserver- xorg-video- intel 2:2.12.0-1ubuntu5.1
ii xorg 1:7.5+6ubuntu3 X.Org X Window System
ii xserver-xorg 1:7.5+6ubuntu3 the X.Org X server
ii xserver-xorg-core 2:1.9.0-0ubuntu7 Xorg X server - core server
Let me know what other information I can provide.